Historias de Ocavatar

The year is 253 AG, and we have a new Avatar named Kairo. As he struggles with airbending, he faces his first mission. Kairo, Gyila, and Mona face a new threat from the Northern Water Tribe, much like the Unalaq incident. Only this time, his grandson Varran wants to free Vaatu, who has been growing inside of Raava this whole time. Will these three young adults be able to defeat Vaatu? Or will the world be caught in the darkness? This is a fanfiction that is set after Avatar Korrra's demise. Most of the characters are original characters. I do not own the ATLA & LoK universe by any means. Most of the plot is canon. Maybe a few adjustments can be made along the way.

What if each Avatar had a Seer? What if Aang tried to stop Sozin with his Seer, but couldn't? What if Katara and Sokka had a sister named after the Seer of Avatar Roku and she was the last Waterbender but saved Kya?